package com.webserver_v6.controller;

import com.webserver_v6.annotation.Controller;
import com.webserver_v6.annotation.RequestMapping;
import com.webserver_v6.entity.User;
import com.webserver_v6.http.HttpServletRequest;
import com.webserver_v6.http.HttpServletResponse;

import java.io.*;
import java.net.URISyntaxException;

@Controller
public class UserController {
    private static File userDir;
    static {
        userDir = new File("./users");
        if(!userDir.exists()){
            userDir.mkdirs();
        }
    }



    @RequestMapping("/regUser")
    public void reg(HttpServletRequest request, HttpServletResponse response){
        System.out.println("开始处理注册!!!!");
        //获取表单信息
        String username = request.getParameters("username");
        String password = request.getParameters("password");
        String nickname = request.getParameters("nickname");
        String ageStr = request.getParameters("age");
        //必要验证
        if(username==null||username.isEmpty()||
                password==null||password.isEmpty()||
                nickname==null||nickname.isEmpty()||
                ageStr==null||ageStr.isEmpty()||!ageStr.matches("[0-9]+")
        ){
            //信息输入有误提示页面

            response.sendRedirect("reg_info_error.html");
            return;
        }

        System.out.println(username+","+password+","+nickname+","+ageStr);

        int age = Integer.parseInt(ageStr);
        User user = new User(username,password,nickname,age);
        File file = new File(userDir,username+".obj");
        if(file.exists()){
            response.sendRedirect("have_user.html");
            return;
        }
        try (
                FileOutputStream fos = new FileOutputStream(file);
                ObjectOutputStream oos = new ObjectOutputStream(fos);
        ){
            oos.writeObject(user);
            //利用响应对象要求浏览器访问注册成功页面
            response.sendRedirect("reg_success.html");
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    @RequestMapping("/loginUser")
    public void login(HttpServletRequest request,HttpServletResponse response){
        String username = request.getParameters("username");
        String password = request.getParameters("password");

        if (username==null||username.isEmpty()||
            password==null||password.isEmpty()
          ){
            response.sendRedirect("login_info_error.html");
            return;
        }
        File file = new File(userDir,username+".obj");
        if (file.exists()){
            try(
                    FileInputStream fis = new FileInputStream(file);
                    ObjectInputStream ois = new ObjectInputStream(fis);
                    ) {

                User user = (User) ois.readObject();
                if (user.getPassword().equals(password)){
                    response.sendRedirect("login_success.html");
                    return;
                }
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
        }
        response.sendRedirect("login_fail.html");

    }
}

